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Finding the Fourth Proportional to 225,225.47, 311,066.25 and 153,480.94

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Solution

The fourth proportional to 225,225.47, 311,066.25 and 153,480.94 is: 211,977.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,225.47 : 311,066.25 = 153,480.94 : x
  2. Step 2: Convert to fraction form
    225,225.47/311,066.25 = 153,480.94/x
  3. Step 3: Cross multiply
    225,225.47x = 311,066.25 × 153,480.94
  4. Step 4: Simplify right side
    225,225.47x = 47,742,740,452.28
  5. Step 5: Solve for x
    x = 47,742,740,452.28/225,225.47
  6. Step 6: Final answer
    x = 211,977.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.